Gotipling pins



Y (No Model.)V v 2 Sheets-Sheet v1.

n J. MASETH. l

MACHINE POR ROLLING GOUPLING PINS. No. 286,324. Q Patented oct. 9,1883.,

(No Mariel.) z'sheets-snet 2. A J. MASIITH.

. MACHINE POR ROLLING GOUPLING PINS.

` Patented 001;. 9, las?,

N PEIERS, mnmmwgmpmr. wnningmn. n c

' UNITEDSTATES lPATENT JOSEPH iWIASETII, OF DETROIT, MICHIGAN, ASSIGNOROF ONE-HALF TO JOIIhT A.. MASETH JOSEPH L.' MASETH, OF SAME PLACE.

NlACHlNE FOR ROLLING COUPLlNG-PINS.

SPEGIF'ICATEGN forming part of Letters Patent No. 286,324, dated October9, 1883.

Application filed May 24, 1883. (Xo model.) I

` T all whom it Hwy concern:

Beitknown that I, JosnPn Masern, of Detroit, in the county of Wayne andState of Michigan, have invented new and useful Improve-ments inMachines for Rolling Coupling- Pis; and I do hereby declare that thefollowing is a full, clear, and exact description thereof, referencebeing had to the accompanying drawings, which 'form a part of thisspecificaxo tion.

p This invention relates to certain new and useful improvements in theconstruction of that class of machines especially designed for rollingor forming draw-pins for car-couplings, such pins being formed from asuitable blank,

which is heated and' dropped into the machine, from which it emergesformed into the desired shape.

The invention consists in the peculiar construct-ion, arrangement, andvarious combinations of the parts, all as more fully hereinafter setfort-h.

Figure 1 is a side elevation of myimproved device. Fig. 2 is aw-'ertieal central section. 2 5 Fig. 3 is a cross-section on the line XX in Fig. 2. Fig. is a cross-section showing the dieroll in its positionnear the finish of the rolling. A In the accompanying drawings, whichform 3o a part of this speciicationfA represents a suitable frame, inwhich is properly journaled the transverse shaft B which is providedbetween its bearings with the spider arms C, `upon which the die-roll Dis concentric-ally secured. 3 5 E is a stationary die roll or bed,placed concentricallyto the revolving die-roll D, and

held in position by the transverse keys a a. c a',

three of which bear against the outside oi' said bed, and all passthrough suitable slots in the 4o frame A. The outer die roll or bed, E,is in the form of a hollow cylinder, with a portion of its' body betweenc and dent away, so as to y expose the face of the die-roll D. The innerface of the die roll or bed E is grooved from ,4,5 c to d, and the innerdie roll, D, is grooved around its entire face, said grooves beingintended to roll a blank inserted between them gradually into thedesired form. lThe sizeof the rolls D and E is so calculated that if a5o blank to produce an ordinary coupling-pin is introduced at c, onerevolution (or nearly one) will roll.V the blank from the point ofintroduction at c in the direction of the arrow marked ,on Fig. 2 to thepoint d, where, owing` to the cutting away of the die-roll E, the pinwill roll out. As the blank can only be gradually welded into thedesired shape, the groove on the inner face of the roll E and the one onthe outer face ofthe roll D are at their startingpoints-which are at cand e, respectivelyof 6o the shape shown at Fig. 3 on top. From thencethey have a slight draft in opposite directions toward their terminalpoints, at which they are of the exact cross-section desired for thecoupling-pin. The grooves f and g, also of unequal length, must bring,during their coaction upon the blank, corresponding crosssections tobear again st the same, and therefore the blank can only be introducedwhen those cross sections register. Vith the machine 7o shown in thedrawings, the right moment to introduce or feed the blank is when thepoint-s c and e register, and to perform this automatically a latch, F,is arranged, upon which the blank is deposited. This latch has a foot,71,-, which bears against the face of the roll D, and supports the latchand blank in the position shown in Fig. 2 until said foot It drops intoa notch, i, on the face of the roll D, and lets the blank fall upon theface of the-roll D, which 8o quickly draws it between the two rolls. Tofeed the blank in proper position, adjustable check-pieces k and Z areattached to the inletopening, as shown in Fig. 3. The two rolls D and Emust also have a certain clearance between them, so as to allow anysuperfluous meta-l from the blank to escape, and also to admit of alimited adjustment ofthe r'ollE by means of the set-screwsm m. Thisadjustment is effected as follows: By turning in the set- 9o screw m,the grooved bed E, being connected to the crossbar E', through whichsaid screws pass, can be raised to a limited degree, By turning in thescrew mf, the bed can beadj usted forward. The serewm bears againstthetrans- 9 5 verse key c', and thus allows of adjustment in anotherdirection. By varying the amount of travel of these screws, the spacebetween the roll D and bed E can be .varied to a limited extent, butsuiiieiently to change the size ofthe roo pins or to compensate for theWear of the parts.

To communicate motion to the roll D, a gear- Wheel, H, is keyed upon oneend of the shaft B, and another gear-Wheel, I, upon a countershaft, K,meshes with it and communicates motion from the driver L upon the.opposite end of the counter-shaft.

In the drawings I have shown a device for flattening the pins whenrequired, but make no claim to it in this application, as it may formthe subject-matter of a separate application.

Vhat I claim as my invention is- 1. The combination, With a frame, A, agrooved bed, and a grooved roll provided with a notch, i, of,ra latch,'F, constructed and arranged to be automatically dropped by the ro- 2otation of said roll, substantially as described.

2. The combination, with the frame A, the grooved bed E, and the roll D,having notch i, of the latch F, provided with the foot h, adapted toreston the roll and drop the blank When 25 the step e approaches thebeginning` of the bed, all constructed and arranged substantially asshown and described.

3. The combination of the frame A, the roll D, supported therein, andthe bed E, 'with the 3o set-screws m, for adjusting the bed to theroller, substantially as described.

- JOSEPH MASETH. VitneSSes:

H. S. SPRAGUE, E. SoULLY.

